SBIR Phase I: Development of Fire-Safe and Low-Cost Flow Batteries using New Membranes for Long-Duration Energy Storage

SBIR 第一阶段：使用新型膜开发防火且低成本的液流电池，用于长期储能

• 批准号: 2212748
• 负责人: Rong Jiang
• 金额: $ 25.6万
• 依托单位: ENERGAO, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-03-01 至 2025-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2212748&HistoricalAwards=false
• 关键词: SBIR; Phase; Development; Fire; Safe

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project is derived from providing energy self-sufficiency to residential buildings. Fire-safe and low-cost redox flow batteries, combined with rooftop solar panels or backyard wind turbines, can meet the increased electricity needs of American families without relying on the national grid. During the daytime, solar arrays convert solar energy to chemical energy in batteries. During evenings, batteries will power houses and charge electric vehicles in family garages. Batteries play a critical role in harvesting and storing clean electricity for residential uses. Compared with lithium-ion batteries, the improved fire-safety profiles and reduced production costs of flow batteries will give homeowners peace of mind and allow the wider adoption of clean energy by society.This SBIR phase I project proposes to develop novel proton-conductive polymeric membranes that show reduced metal electrolyte crossovers and build the first 7 kW flow battery system that meets the energy need of a single-family house. To this end, the project will synthesize a group of phosphorylated polybenzimidazoles (PBIs) that have a phosphoric acid side chain. Such phosphoric acid groups can form unique zirconium phosphonate clusters that transport protons but deny the unwanted migration of metal cations. PBIs provide mechanical support to the zirconium-phosphate clusters. Zirconium and PBIs are bulk materials that cost significantly less than commercial perfluorosulfonic acids. The second task of this phase I project is to construct a 7 kW iron-titanium redox flow battery system. The peak electricity demand for the average American single-family house is around 7 kW. Such a battery will be connected to a rooftop solar system to meet residential electricity demands. The team plans to study various cell configuration designs. In particular, the project will focus on examining the effects of solvent channels of bipolar plates on the performance of the stack. In addition, other design parameters, such as pump flow rates and the choice of sealant materials, will be thoroughly investigated.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项小型企业创新研究（SBIR）I期项目的更广泛的影响/商业潜力来自为住宅建筑提供能源自给自足。防火和低成本的氧化还原流量电池，再加上屋顶太阳能电池板或后院风力涡轮机，可以在不依靠国家电网的情况下满足美国家庭的增加的电力需求。在白天，太阳能阵列将太阳能转换为电池中的化学能。在晚上，电池将为房屋提供动力，并在家庭车库中为电动汽车充电。电池在收获和存储干净的电力中起着至关重要的作用，用于住宅用途。 Compared with lithium-ion batteries, the improved fire-safety profiles and reduced production costs of flow batteries will give homeowners peace of mind and allow the wider adoption of clean energy by society.This SBIR phase I project proposes to develop novel proton-conductive polymeric membranes that show reduced metal electrolyte crossovers and build the first 7 kW flow battery system that meets the energy need of a single-family house.为此，该项目将合成一组具有磷酸侧链的磷酸化聚苯二唑唑（PBI）。这种磷酸基团可以形成独特的磷酸磷酸簇，以传输质子，但否认金属阳离子的不必要迁移。 PBI为锆磷酸锆簇提供了机械支持。锆和PBI是散装材料，其成本明显低于商业全氟磺酸。该阶段I项目的第二个任务是构建一个7 kW铁托氧化还原流量电池系统。美国平均单户住宅的高峰电力需求约为7 kW。这样的电池将连接到屋顶太阳能系统，以满足住宅电力需求。团队计划研究各种单元格配置设计。特别是，该项目将着重研究双极板的溶剂通道对堆栈性能的影响。此外，还将对其他设计参数（例如泵流速和密封剂材料的选择）进行彻底研究。该奖项反映了NSF的法定任务，并且使用基金会的知识分子优点和更广泛的影响评估标准，认为值得通过评估来获得支持。